Sakou, Chihiro
Current rating: 1440
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 73 | Sumii, Hiroyuki (1541) | Lost 1-2 | -161414 |
| 2legacy | 560 | Tsukuda, Takuya (1576) | Won 2-0 | +211435 |
| 3legacy | 367 | Sugimura, Yoshiyasu (1672) | Lost 1-2 | -141421 |
| 4legacy | 557 | Yamaguchi, Takao (1424) | Lost 0-2 | -181403 |
| 5legacy | 566 | Ujihara, Atsushi (1439) | Won 2-1 | +191422 |
| 6legacy | 496 | Koike, Yuta (1584) | Lost 1-2 | -151407 |
| 7legacy | 449 | Taki, Masaya (1374) | Won 2-1 | +171424 |
| 8legacy | 389 | Ikeda, Takeaki (1325) | Won 2-1 | +161440 |
| top | average opponent: 1492record: 4-4 | new rating: 1440 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 481 | Sakurai, So (1467) | Lost 0-2 | -181464 |
| 2modern | 967 | Tamamura, Tatsuki (1485) | Won 2-0 | +181482 |
| 3modern | 740 | Wadamori, Keisuke (1498) | Lost 0-2 | -181464 |
| 4modern | 987 | Ichikawa, Takayoshi (1584) | Lost 0-2 | -151449 |
| 5modern | 1163 | Furutani, Yamato (1401) | Lost 0-2 | -191430 |
| top | average opponent: 1487record: 1-4 | new rating: 1430 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 565 | Kan, Masanori (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||